Marker



FIG. 1 is a left side elevational view of a marker showing my new design, with the right side a mirror image;

FIG. 2 is a front elevational view, with the rear view a mirror image;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a left side elevational view of a second embodiment of a marker showing my new design, with the right side a mirror image;

FIG. 6 is a front elevational view of the marker of FIG. 5, with the rear view a mirror image; and,

FIG. 7 is a top plan view of the marker of FIG. 5, with the bottom view identical to that of FIG. 4. 

The ornamental design for a marker, as shown and described. 